Display apparatus and method of fabricating the same

Abstract

A display apparatus including at least one display panel is provided. The display panel includes a substrate, pad structures, and openings. The substrate has a first and second surface opposite to each other. The pad structures are disposed on the first surface of the substrate. Each pad structure has a connection pad, a conductive pattern layer, and an auxiliary conductive layer electrically connected to each other. The auxiliary conductive layer is overlapped with the conductive pattern layer and the connection pad along a normal direction of the first surface. The openings are disposed on the substrate and penetrate the first and second surfaces of the substrate. The openings and the pad structures are alternately arranged. The substrate also has a third surface defining each opening and connected to the first and second surfaces. The third surface is not conductive. A method of fabricating the display apparatus is also provided.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims the priority benefits of U.S. provisional application Ser. No. 62 / 960,846, filed on Jan. 14, 2020, and Taiwan application serial no. 109115866, filed on May 13, 2020. The entirety of each of the above-mentioned patent applications is hereby incorporated by reference herein and made a part of this specification.BACKGROUND OF THE INVENTIONField of the Invention[0002]The invention relates to a display apparatus, and more particularly to a display apparatus having a light-emitting element.Description of Related Art[0003]With the gradual diversification of the applications of the display apparatus, the use of large display boards for displaying public information or advertisements in major exhibition halls or department stores is becoming increasingly popular. In order to reduce the cost of installation and maintenance of large display boards, tiled displays formed by tiling a plurality of display panels have become one ...

AI Technical Summary

Benefits of technology

[0004]The invention provides a display apparatus having good driving electrical properties as well as increased size, resolution, and driving frequency.

[0005]The invention provides a method of fabricating a display apparatus having better tiling yield and may increase the design margin of a product.

[0026]Based on the above, in the display apparatus and the method of fabricating the same of an embodiment of the invention, the plurality of openings disposed between the plurality of pad structures of the display panel may make the plurality of conductive pattern layers of the pad structures be structurally separated from each other to ensure the electrical independence of the pad structures. Via the overlapping relationship between the auxiliary conductive layers, the conductive pattern layers, and the connection pads, the electrical connection relationship between the conductive pattern layers and the connection pads may be stabilized, thereby increasing the bonding area of the pad structures to increase the bonding (or tiling) yield of the display panel and the driving electrical properties of the display apparatus.

Problems solved by technology

However, with the increase in the resolution and driving frequency of light-emitting diode panels, the stability of signal transmission, the increase in driving current, and the electrical properties of driving circuits have become important issues that related manufacturers must address in the development process.

Images